How Cystic Fibrosis Affects the Body

Section A of the illustration shows the organs that may be affected by cystic fibrosis (sinuses, lungs, skin, liver, pancreas, intestines, reproductive organs).

Section B shows a normal airway with a thin layer of mucus lining the wall.

Section C shows an airway with cystic fibrosis. The widened airway is blocked by thick, sticky mucus that contains blood and bacteria.